RadNumericUpDown doesn't fire event MouseLeftButtonUp -> Notify Value after user stops to click

[Marcelo]

Hi guys,

I'm developing a control that has a lot of numeric and text "inputs" to update other controls.

I need to update just when the value changes "completely", because my other controls will call the service if the event of update be fired.

So, what I want is just fire the notify of value when user stops to click on the control.

I did something like this on RadSlider using IsDeferredDraggingEnabled='True'

public class PWSlider : RadSlider
  {
      public double PWValue
      {
          get { return (double)GetValue(PWValueProperty); }
          set { SetValue(PWValueProperty, value); }
      }

      // Using a DependencyProperty as the backing store for PWValue.  This enables animation, styling, binding, etc...
      public static readonly DependencyProperty PWValueProperty =
          DependencyProperty.Register("PWValue", typeof(double), typeof(PWSlider), new PropertyMetadata(OnPWValuerPropertyChanged));

      private static void OnPWValuerPropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
      {
          if ((o as PWSlider).Value != (double)e.NewValue)
              (o as PWSlider).Value = (double)e.NewValue;
      }

      public PWSlider()
      {
          this.ValueChanged += new RoutedPropertyChangedEventHandler<double>(PWSlider_ValueChanged);
      }

      void PWSlider_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
      {
          PWValue = e.NewValue;
      }
  }

Any thoughts to how implement this on RadNumericUpDown?

[Konstantina]

Hello Marcelo,

I suggest you to use the UpdateValueEvent property of the NumericUpDown control and set it to LostFocus.

Hope this helps.

Regards,
Konstantina
the Telerik team

[Marcelo]

Hi Konstantina,

Sorry, but didn't work as expected.

UpdateValueEvent="PropertyChanged"

and

UpdateValueEvent="LostFocus"

work on the same way on this example:

<telerik:RadNumericUpDown x:Name="numeric" UpdateValueEvent="LostFocus" Value="10" Maximum="120000" Minimum="0"/>
      <TextBox Text="{Binding ElementName=numeric, Path=Value}" Grid.Column="1"></TextBox>

Just to clarify, what I want is update the value on the binding just when the user stop to click, as this example above.

(just to know, my RadControls version: 2011.1.419.1040)

[Valeri Hristov]

Hi Marcelo,

Unfortunately the behavior that you need is not available in RadNumericUpDown. I apologize for the inconvenience.

Greetings,
Valeri Hristov
the Telerik team